diff options
Diffstat (limited to 'epan/dissectors/packet-pfcp.c')
| -rw-r--r-- | epan/dissectors/packet-pfcp.c | 129 |
1 files changed, 96 insertions, 33 deletions
diff --git a/epan/dissectors/packet-pfcp.c b/epan/dissectors/packet-pfcp.c index 6a57c58..6565bfb 100644 --- a/epan/dissectors/packet-pfcp.c +++ b/epan/dissectors/packet-pfcp.c @@ -187,7 +187,18 @@ static int hf_pfcp_redirect_server_address = -1; static int hf_pfcp_other_redirect_server_addr_len = -1; static int hf_pfcp_other_redirect_server_address = -1; static int hf_pfcp_redirect_port = -1; -static int hf_pfcp_outer_hdr_desc = -1; +static int hf_pfcp_outer_hdr_desc_o5_b0_gtp_udp_ipv4 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b1_gtp_udp_ipv6 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b2_udp_ipv4 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b3_udp_ipv6 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b4_ipv4 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b5_ipv6 = -1; +static int hf_pfcp_outer_hdr_desc_o5_b6_ctag = -1; +static int hf_pfcp_outer_hdr_desc_o5_b7_stag = -1; +static int hf_pfcp_outer_hdr_desc_o6_b0_n19 = -1; +static int hf_pfcp_outer_hdr_desc_o6_b1_n6 = -1; +static int hf_pfcp_outer_hdr_desc_o6_b2_ssm_cteid = -1; +static int hf_pfcp_outer_hdr_desc_o6_spare = -1; static int hf_pfcp_outer_hdr_creation_teid = -1; static int hf_pfcp_outer_hdr_creation_ipv4 = -1; static int hf_pfcp_outer_hdr_creation_ipv6 = -1; @@ -4472,41 +4483,38 @@ dissect_pfcp_linked_urr_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, /* * 8.2.56 Outer Header Creation */ - -static const value_string pfcp_outer_hdr_desc_vals[] = { - - { 0x0001, "GTP-U/UDP/IPv4 " }, - { 0x0002, "GTP-U/UDP/IPv6 " }, - { 0x0003, "GTP-U/UDP/IPv4/IPv6 " }, - { 0x0004, "UDP/IPv4 " }, - { 0x0008, "UDP/IPv6 " }, - { 0x000C, "UDP/IPv4/IPv6 " }, - { 0x0010, "IPv4 " }, - { 0x0020, "IPv6 " }, - { 0x0030, "IPv4/IPv6 " }, - { 0x0040, "C-TAG " }, - { 0x0080, "S-TAG " }, - { 0x0100, "N19 Indication " }, - { 0x0200, "N6 Indication " }, - { 0x0400, "Low Layer SSM and C-TEID " }, - { 0, NULL } -}; - static void dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item _U_, guint16 length, guint8 message_type _U_, pfcp_session_args_t *args _U_) { int offset = 0; - guint32 value; + guint64 value; + + static int * const outer_hdr_desc[] = { + &hf_pfcp_outer_hdr_desc_o5_b7_stag, + &hf_pfcp_outer_hdr_desc_o5_b6_ctag, + &hf_pfcp_outer_hdr_desc_o5_b5_ipv6, + &hf_pfcp_outer_hdr_desc_o5_b4_ipv4, + &hf_pfcp_outer_hdr_desc_o5_b3_udp_ipv6, + &hf_pfcp_outer_hdr_desc_o5_b2_udp_ipv4, + &hf_pfcp_outer_hdr_desc_o5_b1_gtp_udp_ipv6, + &hf_pfcp_outer_hdr_desc_o5_b0_gtp_udp_ipv4, + &hf_pfcp_outer_hdr_desc_o6_spare, + &hf_pfcp_outer_hdr_desc_o6_b2_ssm_cteid, + &hf_pfcp_outer_hdr_desc_o6_b1_n6, + &hf_pfcp_outer_hdr_desc_o6_b0_n19, + NULL + }; - /* Octet 5 Outer Header Creation Description */ - proto_tree_add_item_ret_uint(tree, hf_pfcp_outer_hdr_desc, tvb, offset, 2, ENC_BIG_ENDIAN, &value); + /* Octet 5-6 Outer Header Creation Description */ + proto_tree_add_bitmask_list_ret_uint64(tree, tvb, offset, 2, outer_hdr_desc, ENC_BIG_ENDIAN, &value); offset += 2; + /* m to (m+3) TEID * The TEID field shall be present if the Outer Header Creation Description requests the creation of a GTP-U header. * Otherwise it shall not be present */ - if ((value & 0x000100) || (value & 0x000200)) { + if ((value & 0x0100) || (value & 0x0200)) { proto_tree_add_item(tree, hf_pfcp_outer_hdr_creation_teid, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } @@ -4515,7 +4523,7 @@ dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree * p to (p+3) IPv4 * The IPv4 Address field shall be present if the Outer Header Creation Description requests the creation of a IPv4 header */ - if ((value & 0x000100) || (value & 0x000400) || (value & 0x001000)) { + if ((value & 0x0100) || (value & 0x0400) || (value & 0x1000)) { proto_tree_add_item(tree, hf_pfcp_outer_hdr_creation_ipv4, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } @@ -4524,7 +4532,7 @@ dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree * q to (q+15) IPv6 * The IPv6 Address field shall be present if the Outer Header Creation Description requests the creation of a IPv6 header */ - if ((value & 0x000200) || (value & 0x000800) || (value & 0x002000)) { + if ((value & 0x0200) || (value & 0x0800) || (value & 0x2000)) { proto_tree_add_item(tree, hf_pfcp_outer_hdr_creation_ipv6, tvb, offset, 16, ENC_NA); offset += 16; } @@ -4533,7 +4541,7 @@ dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree * r to (r+1) Port Number * The Port Number field shall be present if the Outer Header Creation Description requests the creation of a UDP/IP header */ - if ((value & 0x000400) || (value & 0x000800)) { + if ((value & 0x0400) || (value & 0x0800)) { proto_tree_add_item(tree, hf_pfcp_outer_hdr_creation_port, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; } @@ -4542,7 +4550,7 @@ dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree * t to (t+2) C-TAG * The C-TAG field shall be present if the Outer Header Creation Description requests the setting of the C-Tag in Ethernet packet */ - if (value & 0x004000) { + if (value & 0x4000) { offset = decode_pfcp_c_tag(tvb, pinfo, tree, item, offset); } @@ -4550,7 +4558,7 @@ dissect_pfcp_outer_header_creation(tvbuff_t *tvb, packet_info *pinfo, proto_tree * u to (u+2) S-TAG * The S-TAG field shall be present if the Outer Header Creation Description requests the setting of the S-Tag in Ethernet packet */ - if (value & 0x008000) { + if (value & 0x8000) { offset = decode_pfcp_s_tag(tvb, pinfo, tree, item, offset); } @@ -12606,9 +12614,64 @@ proto_register_pfcp(void) FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, - { &hf_pfcp_outer_hdr_desc, - { "Outer Header Creation Description", "pfcp.outer_hdr_desc", - FT_UINT16, BASE_DEC, VALS(pfcp_outer_hdr_desc_vals), 0x0, + { &hf_pfcp_outer_hdr_desc_o5_b0_gtp_udp_ipv4, + { "GTP-U/UDP/IPv4", "pfcp.pfcp_outer_hdr_desc.gtpu_udp_ipv4", + FT_BOOLEAN, 16, NULL, 0x0100, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b1_gtp_udp_ipv6, + { "GTP-U/UDP/IPv6", "pfcp.pfcp_outer_hdr_desc.gtpu_udp_ipv6", + FT_BOOLEAN, 16, NULL, 0x0200, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b2_udp_ipv4, + { "UDP/IPv4", "pfcp.pfcp_outer_hdr_desc.udp_ipv4", + FT_BOOLEAN, 16, NULL, 0x0400, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b3_udp_ipv6, + { "UDP/IPv6", "pfcp.pfcp_outer_hdr_desc.udp_ipv6", + FT_BOOLEAN, 16, NULL, 0x0800, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b4_ipv4, + { "IPv4", "pfcp.pfcp_outer_hdr_desc.ipv4", + FT_BOOLEAN, 16, NULL, 0x1000, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b5_ipv6, + { "IPv6", "pfcp.pfcp_outer_hdr_desc.ipv6", + FT_BOOLEAN, 16, NULL, 0x2000, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b6_ctag, + { "C-TAG", "pfcp.pfcp_outer_hdr_desc.ctag", + FT_BOOLEAN, 16, NULL, 0x4000, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o5_b7_stag, + { "S-TAG", "pfcp.pfcp_outer_hdr_desc.stag", + FT_BOOLEAN, 16, NULL, 0x8000, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o6_b0_n19, + { "N19 Indication", "pfcp.pfcp_outer_hdr_desc.n19", + FT_BOOLEAN, 16, NULL, 0x0001, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o6_b1_n6, + { "N6 Indication", "pfcp.pfcp_outer_hdr_desc.n6", + FT_BOOLEAN, 16, NULL, 0x0002, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o6_b2_ssm_cteid, + { "Low Layer SSM and C-TEID", "pfcp.pfcp_outer_hdr_desc.ssm_cteid", + FT_BOOLEAN, 16, NULL, 0x0004, + NULL, HFILL } + }, + { &hf_pfcp_outer_hdr_desc_o6_spare, + { "Spare", "pfcp.pfcp_outer_hdr_desc.spare", + FT_UINT16, BASE_DEC, NULL, 0x00f8, NULL, HFILL } }, { &hf_pfcp_outer_hdr_creation_teid, |